this blue in the map tells us where the cold air is. on black friday, looks like the great lakes, if you're going out black friday shopping, very cold and sweeps to the new england area saturday and sunday. be prepared. after that, we have another shot the middle of next week. it won't be brutally cold but will be chilly. forecast today looks great for macy's parade forecast looks great. as i mentioned, not many concerns across the country. enjoy a very beautiful thanksgiving. >> looking forward to that. thanks. >>> did a crucial piece of evidence in the casey anthony murder trial get overlooked? and more on what former general david petraeus is planning to do next. you're watching "first look" on nbc. [ male announcer ] this december, remember -- you can stay in and share something... or you can get out there and actually share something. ♪ the lexus december to remember sales event is on. this is the pursuit of perfection. but, dad, you've got... [ voice of dennis ] allstate. with accident forgiveness, they guarantee your rates won'